Ethyl 6-(chloromethyl)-4-(difluoromethyl)-3-methylpyridine-2-carboxylate
Ethyl 2-(chloromethyl)-4-(difluoromethyl)-5-methylpyridine-3-carboxylate
Ethyl 2-(chloromethyl)-4-(difluoromethyl)-3-methylpyridine-6-carboxylate
Ethyl 2-(chloromethyl)-4-(difluoromethyl)-3-methylpyridine-5-carboxylate